Early selection theories ____________ explain the cocktail party effect.    a. can   b. cannot   c. completely   d. partly   e. none of the above

QUESTION 2 Suppose that the population from question #1 (data is in table below) is experiencing inbreeding depression (F=.25) (and no longer experiencing natural selection). Calculate the new expected genotype frequencies (f) in this population after one round of inbreeding. Please round to 3 decimal places. Genotype Number of Flies Adh Adh 595 Adh AdhS Adh Adh Total f'(Adh Adh- f'(Adh AdhS) f'(Adhs AdhS)- 310 95 1000

Match Column A with Column B. The ultimate source of new alleles A. Mutation this force is causing a small percentage to the evolution process B. Natural selection most are lost due to chance or to detrimental effects on C. Genetic drift phenotype D. migration |In its absence, allele frequencies in different subpopulations will diverge Source of new alleles entering local population from other subpopulations v The movement of organisms among subpopulations - v Genotypes best suited to survive and reproduce in a particular environment of the offspring | The genotypes that promote survival are favored and contribute disproportionately to the offspring of the next generation known as evolutionary adaptation | The random, undirected changes in allele frequencies, especially in small populations.

QUESTION 11 You are examining a new population that has recently migrated to and colonized a new island.  Which of the following characteristics would you expect to see in your population?   a. The new population will likely experience genetic drift related issues related to the founder effect.    b. The new population will suffer more the effects of mutation because this is a bottleneck event.   c. The new population will have high levels of heterozygosity and allelic richness.     d. The new population will most likely have the same allele frequencies as the original population.

Questions 1-3 refer to the pedigree below that represents the presence of PTC tasting in a D.C. area family. PTC tasting is inherited through a dominant allele (T). The genotype of person #1 is: O a. TT O b.Tt O C.T? O d.tt O e.?t

Question 1 as reference

You as a researcher decide to study whether there is a correlation between birth weight and 14 month weight in Holstein cattle. You get the following results: Birth weight (lbs)               Weight at 14 months (lbs) 112                                          760 85                                            695 90                                            712 96                                            735 101                                          739 Based on the data obtained: The covariance of these two samples is: a. 1027.56 b. 25.63 c. 357.84 d. 256.31

36

QUESTION 13 When examining a population, list one clue that would suggest to you that you the population is suffering from inbreeding depression.